This book explores sustainable house construction using materials that sequester carbon or have low embodied carbon. It showcases 55 modern houses built with wood, bamboo, straw, hemp, cork, earth, brick, stone, and recycled materials. The book presents detailed cross-sectional drawings, exploded axonometrics, and photographs of each house, demonstrating how these materials influence architectural design. By focusing on modest-sized homes and their role in architectural experimentation, the book aims to transform current building practices and promote environmentally conscious construction for a more sustainable future.